<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card>
      <el-row :gutter="10">
        <el-col :span="8">
          <!-- 搜索与添加区域 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialog">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-tooltip
              class="item"
              effect="dark"
              content="编辑"
              placement="top"
              size="mini"
              :enterable="false"
            >
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                circle
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <el-tooltip
              class="item"
              effect="dark"
              content="删除"
              placement="top"
             
              :enterable="false"
            >
              <el-button
                type="danger"
                icon="el-icon-delete"
                circle
                 size="mini"
                @click="removeUserById(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <el-tooltip
              class="item"
              effect="dark"
              content="管理"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                circle
                 size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 添加用户对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="dialogStatus"
        width="50%"
        @close="dialogClose"
      >
        <!-- 内容主体区域 -->
        <el-form
          :model="addForm"
          status-icon
          :rules="addFormRules"
          ref="addFormRef"
          label-width="70px"
        >
          <el-form-item label="用户" prop="username">
            <el-input
              type="text"
              v-model="addForm.username"
              autocomplete="off"
            ></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input
              type="password"
              v-model="addForm.password"
              autocomplete="off"
            ></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input
              type="email"
              v-model="addForm.email"
              autocomplete="off"
            ></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input
              type="text"
              v-model="addForm.mobile"
              autocomplete="off"
            ></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="dialogStatus = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 修改用户的对话框 -->
      <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%">
        <el-form
          :model="editForm"
          status-icon
          :rules="editFormRules"
          ref="editFormRef"
          label-width="70px"
        >
          <el-form-item label="用户名">
            <el-input
              v-model="editForm.username"
              autocomplete="off"
              disabled
            ></el-input>
          </el-form-item>

          <el-form-item label="邮箱">
            <el-input
              v-model="editForm.email"
              autocomplete="off"
              prop="email"
            ></el-input>
          </el-form-item>

          <el-form-item label="手机号">
            <el-input
              v-model="editForm.mobile"
              autocomplete="off"
              prop="mobile"
            ></el-input>
          </el-form-item>
        </el-form>

        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo()">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{ userinfo.username }}</p>
        <p>当前的角色：{{ userinfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 2,
      },
      userList: [],
      total: 0,
      // 控制用户对话框的显示与隐藏
      dialogStatus: false,

      // 修改用户对话框的显示与隐藏
      editDialogVisible: false,

      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,

      // 需要被分配角色的用户信息
      userinfo: {},

      // 所有角色的数据列表
      rolesList: [],

      // 已选中的角色id值
      selectedRoleId: "",

      // 添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },

      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户的长度在3~10字符之间",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "密码的长度在6~15字符之间",
            trigger: "blur",
          },
        ],
        email: [{ required: true, message: "请输入邮箱", trigger: "blur" }],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { max: 11, message: "手机号长度不能超过11位", trigger: "blur" },
        ],
      },
      // 查询到的用户信息对象
      editForm: {},

      // 修改表单的验证规则对象
      editFormRules: {
        email: [{ required: true, message: "请输入邮箱", trigger: "blur" }],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { max: 11, message: "手机号长度不能超过11位", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status != 200) {
        return this.$message.error("获取用户列表失败");
      }
      this.userList = res.data.users;
      this.total = res.data.total;
    },

    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (vaild) => {
        if (!vaild) return;

        // 发起修改信息请求
        const { data: res } = await this.$http.put(
          `users/${this.editForm.id}`,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );

        if (res.meta.status !== 200)
          return this.$message.error("更新用户信息失败！");
        this.editDialogVisible = false;
        this.getUserList();
        this.$message.success("更新用户信息成功√");
      });
    },

    // 监听 pageSize 改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },

    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },

    // 监听 switch 开关状态的改变
    async userStateChanged(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用状态失败！");
      } else {
        this.$message.success("更新用户状态成功√");
      }
    },

    // 点击添加用户对话框
    addDialog() {
      this.dialogStatus = true;
    },

    // 监听添加用户对话框的关闭事件
    dialogClose() {
      this.$refs.addFormRef.resetFields();
    },

    // 新增用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        console.log(this.addForm)

        // 添加用户请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          this.$message.error("添加用失败！");
        }
        this.$message.success("添加用户成功√");

        // 隐藏添加用户的对话框
        this.dialogStatus = false;

        // 重新刷新列表
        this.getUserList();
      });
    },

    // 显示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get(`users/${id}`);
      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败！");
      }

      this.editForm = res.data;
      this.editDialogVisible = true;
    },

    // 删除用户
    async removeUserById(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      console.log(confirmResult);

      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      } else {
        const { data: res } = await this.$http.delete(`users/${id}`);
        if (res.meta.status !== 200) {
          return this.$message.error("用户删除失败！");
        } else {
          this.$message.success("用户删除成功√");
          this.getUserList();
        }
      }
    },

    // 展示分配角色的对话框
    async setRole(userinfo) {
      this.userinfo = userinfo;

      // 展示对话框之前，获取所有角色的列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败！");
      }
      this.rolesList = res.data;
      this.setRoleDialogVisible = true;
    },

    // 点击按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId)
        return this.$message.error("请选择要分配的角色");

      const {
        data: res,
      } = await this.$http.put(`users/${this.userinfo.id}/role`, {
        rid: this.selectedRoleId,
      });
      if (res.meta.status !== 200) return this.$message.error("更新角色失败！");
      this.$message.success("更新角色成功！");
      this.getUserList();
      this.setRoleDialogVisible = false;
    },

    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = "";
      this.userinfo = {};
    },
  },
};
</script>

<style lang="less" scoped>
.text {
  font-size: 14px;
}

.item {
  padding: 18px 0;
}

.box-card {
  width: 480px;
}
</style>